\(\sqrt{20}\) का सरल रूप कौन-सा है?
Which is the simplified form of \(\sqrt{20}\)?
Explanation opens after your attempt
Correct Answer
A. \(2\sqrt{5}\)
Concept
\(20=4 \times 5\).
Why this answer is correct
\(\sqrt{20}=\sqrt{4 \times 5}=2\sqrt{5}\).
Exam Tip
Take the perfect square outside the root and leave the remaining factor inside. चरण 1: \(20=4 \times 5\) है। चरण 2: \(\sqrt{20}=\sqrt{4 \times 5}=2\sqrt{5}\)। चरण 3: वर्गमूल के अंदर पूर्ण वर्ग को बाहर निकालें और बाकी अंदर रहने दें।
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